Marantz RC5200 User Manual page 38

Reference
Each time you touch the scroll arrow down, more devices will
appear as follows:
Marantz constantly updates the templates for new models, so your
remote may show considerably more models than we show here.
Note
Receivers are both AMPS and TUNERS - Since you typically use
the two sections of your Marantz receiver at different times, we
have separated them into two devices. You will find the amp section
in AMPS and the Tuner section in TUNERS.
User Guide
36
If you try to Create New Device and you cannot use a scroll
arrow to reveal all of these devices, you have the Revert
configuration loaded (see pages 15,17 and 60).
The Marantz SR14EX
Receiver is actually
two templates: The
SR14EX AMP
template for all
preamp/surround
functions and the
SR14EXTuner
template for all radio
functions.